Description
Axions and axion-like particles (ALPs) are well motivated new physics candidates that couple to the Standard Model fields via classically shift-invariant dimension-5 operators. In this talk I will show how one-loop diagrams with virtual ALP exchange generate dimension-6 SMEFT operators via renormalization group evolution, independently of the mass of the ALP. I will then present indirect bounds on the ALP couplings obtained in a global analysis from experimental constraints on SMEFT Wilson coefficients.
Speaker
Anne Mareike Galda
(Johannes Gutenberg-Universität Mainz)
